Gustav circles his hands in the air, crafting a minor globe of invulnerability that hangs in the air around the two wizards.
Lucius first tries to reach for a scroll, but realizes that using a scroll would disqualify him, and instead repeats the same dispel magic gesture that his mentor had used, but flubs the plucking gester, to the amusement of the crowd.
Gustav snorts and flings out his hand, palm first, in the inmistakeable gesture of a quickened magic missile, yet nothing happens. He looks at his hand, then realizes that the spell doesn't work within the globe and that his opponent is inside it.
The crowd titters at the mistake.
Round 2
[Lucius, your turn, and you're not hasted at the moment...]